Hey R3V-
I installed a new genuine Aux fan in my ‘89 325i and am not getting low speed fan function.
Jumping green/black to black at the fan temp switch I hear the K1 relay click, but it does not engage low speed.
Jumping brown/black to black engages high speed and works fine.
Pressing snowflake inside the car the low speed fan does not engage and I get no voltage at pin 86, but with the K1 installed I DO get relay click, which seems counter intuitive to me. Should get no relay click if I don’t have power at pin 86 with snowflake depressed…..
Also with snowflake engaged I get blower fan, which I thought was only supposed to happen with the recirc button engaged. Tested two A/C switches with the same results.
Do I have an HVAC wiring issue? An Aux fan resistor issue?
halp
I installed a new genuine Aux fan in my ‘89 325i and am not getting low speed fan function.
Jumping green/black to black at the fan temp switch I hear the K1 relay click, but it does not engage low speed.
Jumping brown/black to black engages high speed and works fine.
Pressing snowflake inside the car the low speed fan does not engage and I get no voltage at pin 86, but with the K1 installed I DO get relay click, which seems counter intuitive to me. Should get no relay click if I don’t have power at pin 86 with snowflake depressed…..
Also with snowflake engaged I get blower fan, which I thought was only supposed to happen with the recirc button engaged. Tested two A/C switches with the same results.
Do I have an HVAC wiring issue? An Aux fan resistor issue?
halp
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